Mechanism for operating the dekles of paper-machines



(No Model.)

. N.E.AGKLEY MECHANISM FOR OPERATING THE DEKLES OF PAPER MACHINES.

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UNITED STATES PATENT OF ICE.

NATHAN E. ACKLEY, OF FITCHBUR-G, MASSACHUSETTS.

MECHANISM FOR OPERATING THE DEKLES OF PAPER-MACHINES.

SSPECIFIOATION forming part of Letters Patent No. 424,159, dated March25, 1890.

Application filed July 31,1889. serial No. 319,291. (No model.)

and I do declare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame,

' reference being had to the accompanying drawings, and to the lettersof reference marked thereon, which form a part of this specification.

Figure 1 is a side view of what is termed the dekle of a Fourdrinierpaper-machine, also showing in end view the tube-rolls on which thewire-cloth runs. Fig. 2 is a top view of the side rails of saidpaper-machine and the tubular rails extending from one to the other ofthem, showing the dekle-rails arranged 011 the latter, the mechanism foroperating the said dekle-rails being represented in both the abovefigures. Fig; 3 is a longitudinal section of a portion of one of thetubular rails on which the dekle-rails slide, showing one of the latterin cross-section on enlarged scale. Fig. 4 is a transverse section online 1 1 of Fig. 3.

The object'of my improvement is to provide a mechanism by which thedekle-rails can be freely, quickly, and accurately moved on theirsupporting-rails to adjust the deklestraps to the required distanceapart on the wire-cloth to gage the width of the paper formed thereupon,the nature of my improvement being defined in the claim hereinafterpresented.

In the drawings, A A denote the side rails of the frame of apaper-machine, and B B the tubular rails extending from one to the otherof said side rails and secured to them as shown. C- C are thedekle-rails, supported on said tubular rails and adapted to be movedthereon by screw-shafts D, arranged within the tubular rails B andworking in nuts E, also within the tubular rails and secured to thedekle-rails by nuts F, screwed 011 the shank a of the said nuts E andagainst the said dekle-rails, as shown. Each dekle-rail is provided withgrooved wheels 0 O and P, which support the dekle -bands Q in the usualmanner. The rails B are slotted on their under side at b from each endtoward the middle for a proper distance to receive the lower portion 0of the body of said nuts E, formed to enter and also to move in saidslots when the screw-shafts are revolved. To the outer ends of each ofthe said screwshafts D is fixed a sprocket-wheel G, one of which on eachside of the machine is provided with a handle cl, and the said wheels Gon each side of the machine are to be connected by a chain belt I-I,-asshown in Fig. 2; but said wheels and belt are shown as only on one sideof the machine in said figure.

In cases where it is desired to operate both dekle-rails simultaneouslyand from'one side only of the machine, the screw-shafts D in eachtubular rail B are coupled so as to revolve together, or are made in oneentire piece and extended through both the nuts E in a rail B andprovided with a right-threaded screw to work in one nut and aleft-threaded screw to work in the other nut. In such case but twosprocket-wheels and a single chainbelt will be required to operate thedeklerails and cause them to move apart or toward each other to gage thewidth of the paper formed in the machine.

Heretofore hand-wheels fixed to the screwshafts have been in most casesemployed to revolve said screw-shafts and effect adjustment of thedekle-rails; but this was a slow and tedious process. Also, bevel-gearshave been fixed to the said screw-shafts, which engaged with otherbevel-gears fixed on a shaft supported in bearings extended from theframe of the machine, said shaft also having a crank by which to revolveit; but this mechanism was an expensive one to apply to the machine andwas hard to operate.

WVith my improvement hereinbefore described the adjustment of thedekle-rails can be easily and expeditiously effected and much time savedover the old way of operating them, and the expense of applying it tothe machine is comparatively small.

What, therefore, I claim, and desire to secure by Letters Patent, is

In a paper-making machine, the combination, with the tubular mils '3,1110 dekle-mils In testimony whereof I affix my signature in O, thenuts- E, and screw-shafts l), of the presence of two witnesses.sprocketwvheels G, fixed on said screw-shafts,

the chain belt 1], connecting said sprocket- NATIIiAN E. AOKLEY. 5Wheels, one of said wheels on each side of the machine having a handlefor revolving Witnesses:

it, all supported, arranged, and to operate 05- N. PIPER,

sentially as set forth. I C. F. DANIELS.

